Fastener for window screens



' E. JoRGENsEN FQASTENER FOR- WINDW SCREENS Oct. 23 1923.

Filed may s. 1921 Caja Invenvr Patented @ato 23, i923.

1,471,609 .tifsNr orifice.

nivrrrl JonGnnsiiN, or nas MOINES', Iowa.

FASTENER ronwriv'now SCREENS. y

Application filed May 9, 1921. Serial No.v 468,026.

To aZZwLom t may concern.' Y Y Be it known that I, EMIL JoiiGnNsnN, a

citizen ofthe United States, and resident of Des Moines, inthe county of Polk and State of Iowa,"have invented a certain new and use ful Fastener for Vindow Screens, of which the following is a specification.

The object of my invention is to provide a simple, durable and inexpensive fasten-f` ing' device which may be used 'to secure window screens in position in window open ings.

More particularly it is the object of my i invention to provide a Awindow screen fastener adapted to be used in connection with 7 windows above theiirst floor, such asthose in apartment houses, the'fastener ybeing so arranged that thescreen may be easily and quickly placed in position from the interior of thebuilding, `and also so constructed that the fastenersmay be applied to the window frames from the interior ofthe building.

A further object is to providega screen fastener which maybe formed of a stamped sheet metal and of two pieces similar except being rights and lefts.

A `Vstill further object is toV provideV a window fastener for screens so arranged that the screen may be easily and quickly placed in position from the' interior of the i building, and when placed in position, the

said Jfasteners may be locked so that the screen may not be removed from the exterior. These and other objects will be apparent tov those skilled in the art.

My invention consists in the construction, arrangement and combination ofthe various Y partsof the device, whereby the objects con-- templated are attained, as hereinafter more fully set forth, pointed out inmy claims, and illustrated in the accompanying draw-- ings, in which:

Figure l is a side elevation of a window and window opening from the interior of ka building showing the manner in which my improved fastener is applied to a screen, and the manner in which the said screen is secured in the window opening.

Figure 2 is a detail sectional view taken on the line 2 2 of Figure l with the screen slightly elevated to show the relative position of the locking devices to each other as the screen is applied to the window opening.

Figure 3 is an enlarged detail sectionali View taken on the line 3 3 of Figure 2.

Figure e is an enlarged detail view showing. aportion of the `window casing in segfastening device. Y n F igurev 5 is-a lperspective view of onekof the fastener members.

The numeral 10 indicates a wall of a building yin which is 'provided 'a window opening, the windowAv opening having a ment, and a modified form of'imyimproved 'frame 11 whichis ofthe ordinary construction. This frameill is provided with casings 12, blind stops 13 and a pulley stile 14.

The .numeral l15 indicates a screen frame which is of the ordinary construction and is preferably made-of a size to cover the open-v ing of the lower window sash, lor what is known las a half screen. n These screens are usually placed iniposition` resting adjacent to the inner edges of the outside casings'12 and adjacent to the outer face of the blind stops 13. kThis permits the upper window tobe raised and lowered inside the screen if so desired-i The lower window sash always sets inside vlof the upper window sash, and

for that reason the said lower sash,-indicated by the numeral 16, is always free to be moved to 'an openedor closed position.l f

After the `screen hasbeen placed in position, itihasheretofore been rather a difficult problem to fasten the screen in position from the interior without having to obtain a ladder and secure it in yposition from the outside. 'lhis is almost impossible in five or six 'story apartment /houses r`The width: of the blind stops l13 is usually'about 'three fourths of aninch. This is'the onlyclearance between the screen and theupper-fsash, and for ft'hat'reason it .hasl beensoinewhat diiicult to obtain a fastener that would secure the screen in position from the interior, and

at the same time permit the upper window sash to move up yand down past the said fastener. l

To overcome this dificulty,`I have provided a fastening Vdevice comprisingv a. sheet Y of the sheet metal and kof a depth substantially equal to one-half of the length of the member 19. I Vhave provided these fastener .y 110 members in rights and lefts. The width ofthe member 17 is slightly less than the width of the blind stops 13. On the inner screen as illustratedinFigure 1. The oppositeI blind stop isQprovided with a similar set, with'the exception that-they are right handinstead of left hand members.

' A similar set is provided on each of the screen members thatrest adjacent tothe blinchstops, but inV an inverted manner, as

shown innFigiire 2, and held in position by suitable screws 2 2, andr when the screen is in itsnormalposition, the slot 2O of the inverted .member willenter the slot 2O of the upright member in such a manner that the .s `screen will-be rigidly held against outward movement. vWhenthese .members 17 Thave been secured lto the screen members 15, the

screenris .then held inposition until it is desired Ato remove the samewhich may be easily and'quiclly accomplished by' merelyv lifting `the screen upwardly, causingvall of the inverted membersylf to simultaneously disengage the upright members. The screen maythenbeinoved outwardly a slight dis' tance and. then pulled inihrough the Window opening-if so desired. e

' It will Abe seenethat the screen may be placed in position byaxreverse operation, thaty is, by placing-the members 15 against theouter faceof thefblind stops1'3 in a slightlyy elevated position, then permitting thefscreen to movedownwardly. and the in'- Lverted hookswill,automatically engage the uprightvhooks; v v l Itfsometimes happens that with the windowson the Vlower floors thatit is desirable to ,lock-fthe screeirfrom being moved 'from the ehxterior.- This I. accomplish by providingfa hook 23 which is arranged to be mounted on the lower one of the screws 21,

- as illustrated in Figure l. The hook member is so arranged that when the two fasteners are in a locking position, the hook portion 2st-of said hoolrmember will engage the up- .p'er edge of the inverted member 19. One

of these hooks 23 may be provided on the bottom members of each side of the window opening, and if so desired the hoolr members may be placed on all of the fastening vices. f

By this construction, it will be seen that I have provided a window fastener which is very simple and may be easily and quickly made by the vregular die and stamping method, and so constructed that it will oc-k cupy a very small amount of space soit may be adapted to the blind stops Aof the Vordinary window construction and will not interfere with the opening or closing of the f windows either when in use or out of use. l

l. claim as my `invent-ion: l 1. A window fastener member comprising arplate vhaving two opposite edges, screw openings near one of said edges, a laterally extending' flange near the opposite edge, said flange beingl provided with afslot adjacent to said plate and of a width slightly greater ythan the thickness of the plate, a screw for each of said openings, and a l'ioolr member pivotallymounted on one of ysaid sci'ews.

2.V The combination of a window frame, a

detachable screen frame adjacent thereto, saidtscreen beingY provided' with members having downwardly extending hooks, screws for securing said members to said screen,k Said window frame being provided with membersdiaving upwardly extending hooks to coact with the 4.hooks of said screen, screws for securing the hooks of said window [frame thereto, a locking hook member pivotally mounted on one ofthe screws of each ofthe last said upwardly extending hook` members, substantially as described and for the purposes stated.

Des Moines, Iowa, April 22, 1,9211.,V f 'I EMIL JORGENSEN 

